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Oni makes apple pies for the local bakery. when toni works with an assistant, she produces 60% more apple pies and works 20% fewer hours. having an assistant increases toni's output of apple pies per hour by what percent?

Answer :

Kalahira
Let us assume Toni made 100 apple pies in 10 hours, that means 10/hour. Now, with help of assistant she produces 60% more and work for 20% less time.
So, [100+(60% of 100)] = 160 apple pies produced in [10-(20% of 10)]= 8 hours.
   160/8 = 20/hour
   So, with the help of assistant Toni's output of apple pies per hour increases by 100%.

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